Thomas andrew



T. ANDREW. FOUNTAIN PEN.

{No Model.)

Patented Dec. 14,1897.

IN VENTOH WITNESSES.-

ATTORNEYS UNITED "STATES PATENT OFFICE.

THOMAS ANDREW, OF SYDNEY, NEW SOUTH WALES.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 595,361 ,dated December 14, 897- Application filed March 20, 1897.

To all whom it may concern:

Be it known that I, THOMAS ANDREW, a s ubject of the Queen of Great Britain, and a resi-, dent of Sydney, in the Colony of New South Wales, have invented a certain new and useful Reservoir-Pen, of which the following is a specification.

This invention relates to that class of pen known as the fountain or reservoir pen, and is especially designed to store two different kinds of ink, so as to enable any person using the same to write with-either of the inks, as desired.

It frequently occurs that accountants, clerks, and others use black and red inks alternately, necessitating two pens and causing much inconvenience and waste of time. Now the object of this invention is to provide a duplex pen, and comprises a reservoir-tube with a central division formingtwo compartments to permit of the storage of two different inks, suitable means being provided for charging the reservoirs. Two writing-nibs are placed back to back in the end of the reservoir-tube, which are supplied with ink from the reservoirs by small feeding-tubes, and a device is attached to the latter to permit of either of them being thrown out of operation,

so that when it is desired to use one of the nibs the flow of ink to the other will be cut off. To write With the other nib, and thus use a different ink, all that is necessary is to revolve the pen in the hand and press the regulating device, thereby starting the flow of ink.

In order that this invention may be more fully understood, reference will now be made to the accompanying sheet of drawings, which form a part of this specification, and in which- Figure 1 is a sectional view of this invention. Fig. 2 is a top view of the disk, showing feeding and vent holes. Fig. 3 is a sectional view on line 1 1, Fig. 1, looking upward and showing regulating device, one of the feeding-tubes being open and the other closed.

In all the figures similar letters are used to I denote similar parts.

$erial No. 628,497. (No model.)

the projecting end of the tube the cap F is placed. The central division B extends upward through the inner tube E to meet the top G of the cap F. Two small holes H and I are provided in the top G of the cap F, communicating with the reservoirs O and D, and a screw or stud J is provided in the center of the top G of the cap. A disk K is placed over the top G of the cap F and is provided with two vent-holes L L, a feeding-hole M, and also horns N N. This disk is kept in position by the wing-nut O on the screw or stud J, which latter passes through the opening P provided in said disk. The vent-holes L L are so placed that they will simultaneously communicate with the openings H and I provided in the top G of the cap F.

When it is desired to charge the reservoirs O and D with ink, the disk K is turned by means of the horns N N so as to bring the feeding-hole M in communication with the openings H and I alternately, and the ink may be introduced into the reservoirs by any suitable means through the said feedingholes. It will be obvious that when the ventholes L L are placed immediately over the openings H and I the feeding-hole M will be blocked by the solid part of the top G, and if the disk K is turned just sufficiently to throw the vent-holes out of gear boththe latter and the feeding-hole M will be blocked by the solid part of the top G.. The wing-nut 0 may be used to clamp the disk K in any desired position.

A packing of india-rubber or any other suit able material may be provided on the under inner side of the top G, so that the cap F may be screwed down tightly on the top of the inner tube E.

Q and R are the writing-nibs,set in the tube A in the position shown in the drawings, being supplied with ink through the feedingtubes S and T, respectively. These feedingtubes are tapered, the outer ends presenting a very fine opening against the under sides of the nibs.

Uis an S-shaped piece, constructedof any suitable material, provided with two openings V and W near its extremities. The two curved ends of U, passing through openings in the feeding-tubes S and T, are so arranged that when either of the openings V and W is in the correct position to permit the ink to flow through one of the feeding-tubes the ink will be prevented from passing through the other feeding-tube by the solid part of U blocking the passage. The regulating device U may be operated by one of the fingers, while using the pen, by pressing the lowermost curved end inward, permitting the ink to flow and supply the nib adjacent thereto, at the same time shutting off the supply to the other nib.

My invention may be constructed of any suitable material, but it is preferable to use vulcanite. It is also desirable to use gold nibs; but steel ones may be used, as they are inserted or removed from the pen with case, a curved recess being provided in the solid lower end of the tube.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim as novel, and desire to protect by Letters Patent, is

1. In combination with a longitudinal reservoir having a partition forming two chambers lying side by side, an independent nib for each chamber both located at the same end of the pen means for controlling the vent to the chambers and means for controlling the escape of ink from the chambers to the nibs whereby the ink may be supplied to the nibs independently and alternately as desired.

2. In combination with a reservoir having a partition forming two chambers, a pair of nibs at the same end of the reservoir facing in different directions whereby upon turning the reservoir in the fingers the different nibs may be brought into action successively.

3. In combination the reservoir having the partition forming the two chambers, the two nibs therefor both arranged at the same end of the pen and facing in different directions and arranged at different radial points about the axial line of the pen, and the feed-tubes extending from the chambers to the nibs, substantially as described.

4. In a reservoir-pen, provided with a divided chamber adapted to store two different kinds of writing fluids and having two writing-nibs, and feeding-tubes a feed-regulating device consisting of an S-shaped piece, the ends of which pass through said feedin g-tubes, and control the alternate passage of the fluid through the tubes, substantially as described.

5. In a reservoir-pen the combination with the reservoir-tube, of two writing-nibs, and feeding-tubes, a cap provided with feed-holes, and a revolving disk placed on top of said cap and provided with vent-holes, and a feed-hole to admit of a passage of air or writing fluids into said divided reservoir, substantially as herein described.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

THOMAS ANDREIV.

\Vitnesses:

THOMAS WILLIAM MILLER, VERNEY LOVETT CAMERON. 

